On the 18th October, at 3.40 am, three companies of the 1st S.A.I. attacked Snag and Tail Trenches. The B Coy failed to realize that they had reached Snag Trench and continued beyond it. They had lost touch with their flanks and only some men succeeded to come back. Only a block was established at 50 metres of The Pimple. The D Company launched an attack at 5.45 pm and Snag Trench was occupied but the machine-gun fire from the Butte de Warlencourt took a heavy toll, leaving a small group in the trench.